“I’m very pleased and glad to welcome my own brother into the sleep deprivation that is parenting,” he said at the launch of the King’s Cup Regatta in London, adding that he had “plenty of advice” for his brother.

“I wish him all the best and I hope the next few days they can settle down and enjoy having a newborn in their family and the joys that come with that,” he said.

Kate added, “It’s such a great time of year to have a baby.”

Pool/Samir Hussein via Getty Images
The Duke and Duchess of Cambridge visit Caernarfon Coastguard Search and Rescue Helicopter Base during a visit to North Wales on May 8.

Prior to the birth of his son, the prince made a racy dad joke (racy for a royal, of course) during a trip to Morocco in February with the Duchess of Sussex.

After a well-wisher congratulated the couple on their pregnancy, Harry turned to Meghan and jokingly said, “What, you’re pregnant?”

“Surprise!” Meghan said, laughing.

Harry took it a step further than most royals would, asking, “Is it mine?!” as the room filled with laughter.